In this lesson, we’re going to talk about what a drush command is exactly. We're assuming you’re at least somewhat familiar with drush and running commands, and general interaction with the terminal. In order to demonstrate both how drush commands work, and to give a better idea of what we’ll be working towards, we're going to take a look at the drush command we’re going to write for the databasics module and explain a bit about arguments and options. We’re going to

Run a couple of drush commands and see the difference between arguments and options in action.
Talk about the command that we’re going to learn to write in this series
See how to get a list of all the commands drush knows about and the help text for those commands
Learn about the pat